CN104176267B - Three-dimensional high-directivity infrared laser aircraft landing guide system - Google Patents
Three-dimensional high-directivity infrared laser aircraft landing guide system Download PDFInfo
- Publication number
- CN104176267B CN104176267B CN201410412578.8A CN201410412578A CN104176267B CN 104176267 B CN104176267 B CN 104176267B CN 201410412578 A CN201410412578 A CN 201410412578A CN 104176267 B CN104176267 B CN 104176267B
- Authority
- CN
- China
- Prior art keywords
- iraser
- aircraft
- landing
- aircraft landing
- dimensional high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 48
- 238000004458 analytical method Methods 0.000 claims description 15
- 230000010287 polarization Effects 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000012512 characterization method Methods 0.000 claims 1
- 238000013459 approach Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/04—Landing aids; Safety measures to prevent collision with earth's surface
- B64D45/08—Landing aids; Safety measures to prevent collision with earth's surface optical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/18—Visual or acoustic landing aids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/499—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using polarisation effects
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Traffic Control Systems (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a three-dimensional high-directivity infrared laser aircraft landing guide system. The three-dimensional high-directivity aircraft landing guide system is mainly characterized in that optical images with required aircraft landing information are generated in air by the aid of high-penetration and high-directivity infrared laser light via an optical system and can cover large flight intervals, so that aircrafts can detect the optical images in the large flight intervals, and the aircrafts or aircraft pilots can be guided via the information provided by the optical images to find the optimal landing routes, and the aircrafts can be smoothly landed. The three-dimensional high-directivity infrared laser aircraft landing guide system has the advantages that the navigation information is pertinently transmitted only in specific directions by the aid of the high-directivity infrared laser light, accordingly, energy wastage can be reduced, the navigable distances can be increased, and the anti-interference performance can be improved.
Description
Technical field
The present invention relates to a kind of three-dimensional high directivity iraser aircraft landing guidance system, belongs to aerospace engineering field.
Background technology
Landing system is exactly to make pilot (thunderous according to the instruction of navigation instrument on aircraft or ground-based radio
Up to, radio direction-finder station etc.) guiding, can under various complicated meteorological conditions, operating aircraft enters runway exactly, help
The system of help-fly machine safe landing.Airport blind landing is divided into Three Estate：I classes require to run more than 800 meters in runway visibility；
II classes require that runway visibility can not be less than 350 meters during operation；Group III then requires that runway visibility must not be less than 210 meters.At present
Two kinds of main landing systems are ILS instrument landing systeies and MLS microwave landing systems.ILS is International Civil Aviation Organization now
The reference landing equipment that ICAO confirms, the dual-use airport at least thousand of, the whole world are equipped with this system.The work(of ILS
Can be for approach aircraft provide a fixed glide-path and minimum navigation channel deviation, while show 2-3 distance
Checkpoint, to ensure that aircraft safety lands.The function of MLS is that the aircraft to march into the arena provides flexile approach guidance, evens up
Guiding and guiding of going around, coordinate precise distance measurement system (DME/P) to meet the requirement of Group III landing equipment, to ensure aircraft safety
Land.
Existing ILS also there are problems that：Single ILS can't reach Group III precision on pointing accuracy and enter
The requirement that field is landed；ILS channels less (40), it is impossible to which the increase for meeting aviation in future flow is wanted to runway quantity
Ask, the time of takeoff and landing will be affected；ILS antenna coverage rate wave beams are easily passed through the instantaneous interference of aircraft by other；March into the arena sector
Coverage rate is narrower, can only march into the arena along centrage, causes aircraft pilotss' resolution difficulty greatly, and mobility is poor；Frequency is in metric wave ripple
Section is quite full, and easily by neighbouring station interference, pointing accuracy is had an impact；Airport surrounding terrain landforms are required relatively sternly, easily to receive
The impact of meteorological condition (such as the reflection of snow).Therefore, existing ILS cannot gradually meet the requirement of aircraft industry, research and develop new
Landing system has become very important demand.In addition, though have been developed that advanced MLS microwaves land in the world being
System, but the cost that will install a set of MLS needs is high, and for the airport of small scale is to bear really, this is namely
The reason for what MLS cannot be popularized always.In the face of the deficiency of ILS and MLS, need to research and develop the landing system or landing of a new generation as early as possible
Aid system, on the premise of without the need for carrying out larger adjustment to existing ILS, strengthens aircraft with the aid system of low cost and exists
Safe landing is carried out under extreme weather, or even replaces ILS as main Landing Guidance System.
As the aerial penetrance of light in 3～5um and 8～12um the two wave bands is high, propagation distance is remote, therefore
It has been proposed that being guided come the landing as aircraft with the LED of infrared band as light source.However, as LED wave bands are near red
Wave section, penetrance are poor, and LED is the light source of high diverging, and most light all diffuses to the direction unrelated with navigation so that
The scope that this method can work more is limited to, and its energy use efficiency is also than relatively low.
The present invention use the middle-infrared band or far infrared band laser of high directivity as light source so that laser towards
Navigation direction is launched, and greatly increases the working range and energy use efficiency of navigation, and mid-infrared and far wave band are
Jing has the commercial lasers power source of several different sizes available.In terms of optical detector, detect in the bidimensional image of this wave band
Device can also be obtained in business market.Therefore, the main technology of the present invention is it is important that utilizing and integrating these commercial components
Design invents three-dimensional high directivity iraser approach and landing system so as to reach practical application required function.
The content of the invention
The present invention is to place the lasing light emitter of a high directivity in the end of runway, and lasing light emitter is swashed along the transmitting of optimal landing approach
Light simultaneously forms the optical pattern of directed radiation in space by respective optical system.Optical pattern is via device in aircraft
On two-dimensional infrared light detecting system detecting, pass to image capture and analysis display system analyze and show analysis result.Light
Form and dimension of pattern etc. is learned just with three-dimensional spaces such as the relative positions and aircraft flight speed between aircraft and landing runway
Between information, therefore the analysis of system is carried out through the message that provided to these optical imagerys, pilot's landing institute can be provided
The information for needing.
In the present invention, light source selects middle-infrared band or far infrared band laser, and reason is due to specific infrared band
The aerial penetrance of light is especially high, less can be affected by weather.And drawn using infrared light as takeoff and landing at present
The device of guiding systems is all the light source using high transpiring, while being concentrated mainly near infrared range, this causes the use of the energy
Efficiency is very low, while also shortening the distance that can be navigated.Therefore, mid-infrared or far infrared of the present invention using high directivity
Laser is used as light source, and laser launches navigation information just for specific direction, can reduce the waste of the energy, and can increase can
The distance of navigation.
A kind of three-dimensional high directivity iraser aircraft landing guidance system that the present invention is provided, including along optimal landing angle
Spend
The infrared light detecting system put and optical imagery identification analysis display system.By allowing laser to produce the optical picture of directed radiation
Picture, with the information required for being supplied to pilot flight's device to land.
The lower section in the position disposed by infrared laser source optimal level point on runway, and towards optimal landing angle direction
Transmitting, the wavelength band of sent out optical maser wavelength in 3～5um or 8～12um, and for polarized light source.The launch party of iraser
Correct to another visible calibration beam, iraser and visible calibration beam are gathered together by Optical devices,
Open HONGGUANG and iraser in the case that weather is good simultaneously, in the range of about 1000m, pilot just directly can pass through
The direction landing of HONGGUANG is look at, and when bad weather is run into, infrared laser source is only opened as guiding light source.
The infrared light detecting system used by the three-dimensional high directivity iraser aircraft landing guidance system of the present invention can
To detect wavelength in 3～5um or the iraser of 8～12um wavelength bands, optical imagery identification analysis display system can be distinguished
Know and analyze optical imagery that infrared light detecting system detected and show analysis result.The aircraft landing guidance system, flies
Office staff wears the Polarization goggles orthogonal with the polarization light polarization direction launched by infrared laser source.
Using the approaching and landing system method of aforesaid three-dimensional high directivity iraser aircraft landing guidance system, iraser
The optical imagery that landing page information can be provided is produced by optical system along optimal landing route；Aircraft vectoring is arrived by navigation system
Land near airports；Infrared light detecting system on aircraft detects iraser through the optical imagery produced by optical system；Light
Learn image identification analysis display system to recognize and analyze signal that infrared light detecting system detected and be analyzed, to provide
Information required for aircraft landing；Pilot or autoflight system fly according to the guide adjustment that image identification analyzes display system
The direction of machine is to optimal landing route.
Description of the drawings
Fig. 1 is the schematic diagram of embodiment of the present invention three-dimensional high directivity iraser aircraft landing guidance system.
In figure：1. runway；2. the infrared laser source of high directivity (low divergence)；3. calibration beam emitter；4. optics
Device；5. optical system；6. optical pattern aboard is detected, wins and analyze display system.
Specific embodiment
Three-dimensional high directivity iraser aircraft landing guidance system, it is special including the low diverging along optimal landing angular emission
Property infrared laser source, the light source for launching visible calibration beam, the optics for allowing iraser and visible calibration beam to be gathered together
Device, laser is allowed to produce the infrared light detecting system and light configured on the optical system of optical imagery of directed radiation, aircraft
Learn image identification analysis display system.By allowing laser to produce the optical imagery of directed radiation, to be supplied to pilot flight's device
Information required for landing.
The lower section in the position disposed by infrared laser source optimal level point on runway, and towards optimal landing angle direction
Transmitting, the iraser wavelength launched is in the wavelength band of 3～5um or 8～12um, and is polarized light source.Iraser
The direction of the launch corrected with another visible calibration beam, calibration beam is HONGGUANG, and iraser and visible calibration beam are logical
Cross a translucent half reflection Optical devices to be gathered together, open HONGGUANG and iraser in the case where weather is good simultaneously,
In the range of about 1000m, pilot just directly can be landed by look at the direction of HONGGUANG, when bad weather is run into, only open red
Outer lasing light emitter is used as guiding light source.
The laser sent by infrared laser source can produce the optical imagery of directed radiation in the air by optical system, can
To provide the information needed for aircraft landing.
The infrared light detecting system used by aircraft landing guidance system can detect wavelength in 3～5um or 8～12um ripples
The iraser of segment limit, and it is timely in two dimensional surface to parse the optical imagery formed after optical system by iraser
Between on change.The optical imagery identification analysis system of the aircraft landing guidance system can be recognized and analyze display infrared light and detect
The optical imagery detected by examining system.The aircraft landing guidance system, pilot are worn inclined with what infrared laser source was launched
The orthogonal Polarization goggles of light polarization direction of shaking.
Using aforesaid three-dimensional high directivity iraser aircraft landing guidance system, iraser passes through optical system edge
Optimal landing route generation and orientation and the optical imagery apart from message can be provided；Navigation system is by aircraft vectoring to destination
Near；Infrared light detecting system on aircraft detects infrared ray laser through the optical imagery produced by optical system；Optical picture
As identification analysis display system recognizes and analyze the signal detected by infrared light detecting system and is analyzed, to provide aircraft
With required information of landing；Pilot or autoflight system analyze the guide adjustment aircraft of display system according to image identification
Direction to optimal landing route.
To sum up described, the present invention uses the infrared laser source with high-penetrability and high directivity, just for specific
Direction transmitting navigation signal, energy resource consumption can be reduced, cover that larger flight is interval, increase the distance that can be navigated, and can
Information needed for aircraft lands is provided.Therefore the present invention can be applicable to all kinds of big airparks, used as under poor weather
Approaching and landing system aid system, or even replace original approaching and landing system system, as main approaching and landing system system.
Claims (8)
1. a kind of three-dimensional high directivity iraser aircraft landing guidance system, it is characterised in that include sending out along optimal landing angle
Configure on the low divergence characterization infrared laser source penetrated, the optical system of the optical imagery for allowing laser generation directed radiation, aircraft
Infrared light detecting system and optical imagery identification analysis display system；
Wavelength band of the sent out iraser wavelength of the infrared laser source in 3～5um or 8～12um；
The optical imagery provides the information of relative position and aircraft flight speed that aircraft most preferably lands route.
2. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 1, it is characterised in that
Described infrared laser source is polarized light source.
3. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 1, it is characterised in that
The lower section in the position disposed by described infrared laser source optimal level point on runway, and send out towards optimal landing angle direction
Penetrate iraser.
4. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 1, it is characterised in that
Described infrared light detecting system can detect iraser wave band of the wavelength in 3～5um or 8～12um.
5. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 1, it is characterised in that
Described optical imagery identification analysis display system can recognize and analyze the optical imagery detected by infrared light detecting system
And show analysis result.
6. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 1, it is characterised in that
The direction of the launch of the iraser is corrected with another visible calibration beam.
7. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 2, it is characterised in that
Pilot wears the Polarization goggles orthogonal with polarization light polarization direction.
8. a kind of three-dimensional high directivity iraser aircraft landing guidance system according to claim 1-7 any one,
The method of the guidance system guiding aircraft landing is comprised the following steps:
(1) guidance system is by near aircraft vectoring to destination；
(2) iraser produces the optical picture that can provide aircraft landing information needed by optical system along optimal landing route
Picture；
(3) the infrared light detecting system on aircraft detects iraser through the optical imagery produced by optical system；
(4) optical imagery identification analysis display system recognizes and analyzes the optical imagery detected by infrared light detecting system, shows
Show analysis result；
(5) pilot or autoflight system analyze the direction of the guide adjustment aircraft of display system to most suitable according to image identification
The landing route of conjunction.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412578.8A CN104176267B (en) | 2014-08-20 | 2014-08-20 | Three-dimensional high-directivity infrared laser aircraft landing guide system |
| US15/504,598 US20170240294A1 (en) | 2014-08-20 | 2015-04-13 | Three-dimensional infrared laser aircraft landing-guiding system with high directivity |
| PCT/CN2015/076477 WO2016026315A1 (en) | 2014-08-20 | 2015-04-13 | Guiding system of three-dimensional high-directivity infrared light for aircraft landing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412578.8A CN104176267B (en) | 2014-08-20 | 2014-08-20 | Three-dimensional high-directivity infrared laser aircraft landing guide system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104176267A CN104176267A (en) | 2014-12-03 |
| CN104176267B true CN104176267B (en) | 2017-05-10 |
Family
ID=51957678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412578.8A Expired - Fee Related CN104176267B (en) | 2014-08-20 | 2014-08-20 | Three-dimensional high-directivity infrared laser aircraft landing guide system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20170240294A1 (en) |
| CN (1) | CN104176267B (en) |
| WO (1) | WO2016026315A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176267B (en) * | 2014-08-20 | 2017-05-10 | 电子科技大学 | Three-dimensional high-directivity infrared laser aircraft landing guide system |
| CN105460231B (en) * | 2014-12-23 | 2017-12-15 | 海丰通航科技有限公司 | Three Semu are depending on closely entering slope indicator |
| CN104807464B (en) * | 2015-04-22 | 2017-12-01 | 深圳市视晶无线技术有限公司 | Aircraft near field bootstrap technique |
| CN105539868B (en) * | 2015-12-25 | 2017-08-25 | 中国航空工业集团公司北京航空制造工程研究所 | Above-decks equipment, airborne equipment, guide device and the method for warship for aircraft |
| CN105657345A (en) * | 2015-12-30 | 2016-06-08 | 深圳市科漫达智能管理科技有限公司 | Aerial photo machine-based residential property area patrol system |
| CN106184785B (en) * | 2016-06-30 | 2018-09-28 | 西安电子科技大学 | A kind of auxiliary landing indicating means for unmanned helicopter |
| RU2695044C2 (en) * | 2017-05-15 | 2019-07-18 | Федеральное государственное бюджетное учреждение науки Институт оптики атмосферы им. В.Е. Зуева Сибирского отделения Российской академии наук | Method of constructing a visual take-off system using vortex laser beams |
| CN107146475B (en) * | 2017-06-06 | 2023-07-18 | 中国民用航空总局第二研究所 | Ground service system, airborne guiding system and aircraft approach landing guiding system |
| CN107424440B (en) * | 2017-06-06 | 2023-07-18 | 中国民用航空总局第二研究所 | Aircraft approach landing monitoring system |
| CN107627945B (en) * | 2017-08-31 | 2020-06-05 | 浙江吉利控股集团有限公司 | Flying car system and flying car sharing method |
| CN107885223B (en) * | 2017-10-31 | 2020-02-14 | 武汉大学 | Unmanned aerial vehicle retrieves bootstrap system based on laser |
| CN107908197A (en) * | 2017-11-23 | 2018-04-13 | 深圳市智璟科技有限公司 | The accurate landing system of unmanned plane and method based on infrared beacon and vision |
| CN107943086A (en) * | 2017-12-21 | 2018-04-20 | 合肥灵猫传媒有限公司 | A kind of unmanned plane cluster makes a return voyage control system |
| CN108363034B (en) * | 2018-03-20 | 2023-09-22 | 陈昌志 | Thermo-magnetic beacon fog-penetrating navigation landing system |
| CN109343389A (en) * | 2018-10-08 | 2019-02-15 | 成都戎创航空科技有限公司 | A kind of aviation landing positioning system |
| CN109878746B (en) * | 2019-01-10 | 2021-09-10 | 山东国耀量子雷达科技有限公司 | Airplane landing auxiliary system based on laser beacon |
| US20200013008A1 (en) * | 2019-09-17 | 2020-01-09 | Royce Newcomb | Unmanned air aerial vehicle based delivery system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3629911A1 (en) * | 1986-09-03 | 1988-03-10 | Precitronic | LANDING APPROACH FOR AIRCRAFT |
| CN1173449A (en) * | 1997-03-29 | 1998-02-18 | 深圳奥沃国际科技发展有限公司 | Laser signalling system for indicating airplane takeoff and landing |
| CN101244765B (en) * | 2008-03-14 | 2010-06-02 | 南京航空航天大学 | Visual guidance for takeoff and landing of airplane in low visibility condition, monitor system and technique thereof |
| DE102009047402A1 (en) * | 2009-12-02 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | lighting device |
| CN202320788U (en) * | 2011-11-04 | 2012-07-11 | 中国船舶工业集团公司船舶系统工程部 | Laser guiding device for aircraft landing |
| CN103569372B (en) * | 2013-10-12 | 2015-08-26 | 西安理工大学 | Machine aided of going straight up to based on wireless ultraviolet light falls system and helps and falls method |
| CN104176267B (en) * | 2014-08-20 | 2017-05-10 | 电子科技大学 | Three-dimensional high-directivity infrared laser aircraft landing guide system |
-
2014
- 2014-08-20 CN CN201410412578.8A patent/CN104176267B/en not_active Expired - Fee Related
-
2015
- 2015-04-13 US US15/504,598 patent/US20170240294A1/en not_active Abandoned
- 2015-04-13 WO PCT/CN2015/076477 patent/WO2016026315A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN104176267A (en) | 2014-12-03 |
| WO2016026315A1 (en) | 2016-02-25 |
| US20170240294A1 (en) | 2017-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104176267B (en) | Three-dimensional high-directivity infrared laser aircraft landing guide system | |
| US11100810B2 (en) | Drone encroachment avoidance monitor | |
| RU2463638C2 (en) | Apparatus for predicting and imaging vortices in aircraft trail | |
| US4063218A (en) | Aircraft take-off and landing system and method for using same | |
| CN109911237A (en) | Based on ultraviolet light to the unmanned machine aided drop and guidance system and application of empty coded beacons | |
| US20240321124A1 (en) | Cross-checking localization during aircraft terminal operations | |
| TWI579811B (en) | Aircraft landing-guiding system and method | |
| US9435635B1 (en) | System and methods of detecting an intruding object in a relative navigation system | |
| US11875691B2 (en) | Drone encroachment avoidance monitor | |
| CN102501978B (en) | Method and system for achieving all-weather aircraft landing or carrier landing by quantum entangled-state light | |
| US20030227412A1 (en) | Low probability of intercept (LPI) millimeter wave beacon | |
| RU2282867C1 (en) | Method for determination of object spatial attitude | |
| US2097072A (en) | Transmitter arrangement for guiding airplanes | |
| CN115258182A (en) | Remote auxiliary return landing system for airplane | |
| CN108152787A (en) | For accurately obtaining the method for satellite radar antenna beam direction | |
| RU2285933C1 (en) | System for determining spatial position of object | |
| RU2282868C1 (en) | Method for determination of object spatial attitude | |
| Kelner et al. | Local navigation system for VTOLs used on the vessels | |
| RU2282865C1 (en) | System for determination of object spatial attitude | |
| JP2606609B2 (en) | Aircraft entry detection device | |
| RU2282866C1 (en) | Method for determination of object spatial attitude | |
| RU2285932C1 (en) | System for determining spatial position of object | |
| CN202320787U (en) | System for realizing all-weather aircraft landing or carrier landing by quantum entangled-state light | |
| RU2055785C1 (en) | Aircraft landing method | |
| Stefanescu et al. | Advanced Air Mobility (AAM) Aircraft Precision Landing Design for Instrument Meteorological Conditions (IMC) Operations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 |